Content Quality: Concise 642-word Briefing (range 300-800) with Overview, What Changed, Side Effects, Rest of Release and What We Don't Know sections. Clear and appropriately technical.
Source Verification: Read all three snapshots (source-0/1/2.html.gz, all HTTP 200, suspicious_patterns null for all) and cross-checked source-0 against the GitHub releases API (published_at 2026-10-13T08:50:05Z, tag v2.2.9, body matches snapshot) and PR metadata via the GitHub API. source-0 (release v2.2.9): confirms Oct 13 date; Highlights quote 'Rspack's chunking algorithm has been improved to reduce duplicate modules across chunks.' verbatim (#15885); 'reducing native binary by 2.13 MB (3.08%)' verbatim (#16009, bold markup only); browserslist-rs upgrade plus deflate compression; 18 Performance entries (counted); 5 New Contributors; #15885 credited to @JSerFeng, #16009 to @LingyuCoder. source-1 (PR #15885): 'Late reuse of a named async chunk can leave modules duplicated in its descendants.' verbatim; entry/parent-a/child/parent-b example matches; 'Keep ordinary merging intersection-only', post-queue union step, 'oscillation around cycles' and 'Delete only when every consumer can inherit the module' all present; app-flow-chat measurements 42,569,778 -> 41,717,715 bytes (about 2.00%), chunks 1,921 -> 1,890, files 2,526 -> 2,482 all match; caveat quote 'These whole-build measurements were not rerun for the final convergence/CSS fixes and are not first-screen measurements.' verbatim; 'did not establish a reliable speedup or regression' verbatim; author JSerFeng, merged Oct 9 (API: 2026-10-09T08:36:53Z). source-2 (PR #16009): motivation sentence 'Enabling React Compiler can overflow the native stack on long expressions, including files that contain no React code.' verbatim; swc_core 79.0.0 -> 82.0.0; browserslist-rs 0.21.2 shared with SWC with deflate; four stats cases refreshed, Android 151 vs 150; reverted PURE optimization 'potentially increasing output size'; HtmlRspackPlugin adjacent scripts remain separate; 'This upgrade does not break the Wasm plugin ABI or AST schema' (bold on 'not' dropped) ; @swc/plugin-remove-console 14.0.0 ran on 2.2.8 and upgraded build; 1,000-term regression; author LingyuCoder, merged by chenjiahan Oct 8 (API 2026-10-08T09:38:59Z). Binary-size bot comment in the PR: 69.29MB to 67.16MB (3.08%), consistent with 2.13 MB. No snapshot failures or archive fallbacks; no WebFetch needed.
Factual Accuracy: All numbers, dates, quotes and credits verified individually. The 2.00% figure is correctly attributed to a single application (app-flow-chat), Brotli-compressed client JS/CSS, measured at an earlier commit and not re-run for final fixes; the article does not generalize it and repeats the caveat in What We Don't Know. The title does not claim 2% and says 'Improves Chunking to Cut Duplicate Modules', which matches the release highlight. The 2.13 MB figure is the release's 'native binary' reduction; the sources do not name a platform (the PR's size-limit bot shows 69.29MB -> 67.16MB without specifying one), and the article, like the sources, does not claim one. 'Shrinks Its Native Binary by 2.13 MB' is as stated in the release.
Overall Assessment: Accurate, well-sourced, appropriately hedged Briefing. All claims trace to the three first-party GitHub sources. APPROVE.